bicycle-built-for-two, tandem, tandem bicycle - a bicycle with two sets of pedals and two seats

bicycle seat, saddle - a seat for the rider of a bicycle

bicycle wheel - the wheel of a bicycle

chain - a series of (usually metal) rings or links fitted into one another to make a flexible ligament

coaster brake - a brake on a bicycle that engages with reverse pressure on the pedals

handlebar - the shaped bar used to steer a bicycle

all-terrain bike, mountain bike, off-roader - a bicycle with a sturdy frame and fat tires; originally designed for riding in mountainous country

mudguard, splash guard, splash-guard - a curved piece above the wheel of a bicycle or motorcycle to protect the rider from water or mud thrown up by the wheels

ordinary bicycle, ordinary - an early bicycle with a very large front wheel and small back wheel

foot lever, foot pedal, treadle, pedal - a lever that is operated with the foot

push-bike - a bicycle that must be pedaled

safety bicycle, safety bike - bicycle that has two wheels of equal size; pedals are connected to the rear wheel by a multiplying gear

sprocket wheel, sprocket - thin wheel with teeth that engage with a chain

velocipede - any of several early bicycles with pedals on the front wheel

wheeled vehicle - a vehicle that moves on wheels and usually has a container for transporting things or people; "the oldest known wheeled vehicles were found in Sumer and Syria and date from around 3500 BC"

backpedal - pedal backwards on a bicycle

ride - be carried or travel on or in a vehicle; "I ride to work in a bus"; "He rides the subway downtown every day"